1. Biomedical Physics Laboratory for Korean Medicine, School of Physics, Seoul National University, Seoul, Korea.
2. Department of Chest & Cardiovascular Surgery, the Catholic University of Korea, Seoul, Korea.
3. College of Medicine, Pharmacology, Soonchunhyang University, Chunan, Korea.
4. College of Medicine, Pathology, Soonchunhyang University, Chunan, Korea.